The IRS opens filing season on January 27, 2025

You can begin filing your 2025 tax return on January 27, 2025. This is when the IRS starts accepting returns from tax professionals and individual filers using tax software or paper forms. The date shifts slightly each year because the IRS needs time to update systems and test them after the previous year closes.

The important date to file remains April 15, 2025, unless that date falls on a weekend or holiday. If you cannot file by then, you can request an automatic extension that moves your important date to October 15, 2025 — but this extension applies only to filing, not to paying taxes owed.

Starting early has real advantages. Tax software and filing services are less congested, refunds process faster, and you have time to gather documents without rushing. If you owe money, filing early gives you weeks to plan payment rather than scrambling at the last moment.

Key Takeaways

  • Filing season opens January 27, 2025, and you can file any day after that through April 15, 2025.
  • An automatic extension moves your filing important date to October 15, 2025, but does not extend the important date for paying taxes you owe.
  • The IRS processes refunds faster when you file early in the season, often within 21 days if you choose direct deposit.
  • You need your W-2 forms from employers or 1099 forms from other income sources before you can file, and these must reach you by January 31, 2025.
  • If you file before you receive all your forms, you can file an amended return later using Form 1040-X.

Why the IRS waits until late January to open filing

The IRS does not open filing season when ready after December 31 because employers and financial institutions need time to prepare and mail the forms you need to file. Your employer must send you a W-2 by January 31, 2025. Banks and brokerages must send 1099 forms — for interest, dividends, or investment sales — by the same date. The IRS cannot safely process returns before these forms are in circulation, because returns filed without them are often incomplete or incorrect.

The delay also gives the IRS time to update its systems after processing the previous year's returns. Tax law changes take effect, new forms are printed, and software providers test their systems against IRS computers. This testing period typically runs from early January through late January.

Starting January 27 does not mean you must wait until then. You can gather documents, organize receipts, and prepare your information before the season opens. Many people file their return the moment the IRS opens, so the first week of filing season is often the busiest.

What documents you need before you can file

You cannot file a complete return without the income documents your employer or financial institution sends you. The most common are W-2 forms from employers, which report wages and taxes withheld. If you received income from sources other than employment — self-employment, rental property, investment sales, or unemployment benefits — you will receive a 1099 form specific to that income type.

Employers and financial institutions must mail these forms by January 31, 2025. In practice, many arrive in early January, but some arrive closer to the important date. If you have not received a W-2 or 1099 by February 15, contact the employer or institution directly. The IRS has a tool on its website to report missing forms.

Beyond income documents, gather receipts and records for any deductions you plan to claim. If you itemize deductions, you need records of mortgage interest, property taxes, charitable donations, or medical expenses. If you take the standard deduction — which most people do — you do not need to provide receipts, but keep them for your records in case the IRS asks questions later.

How filing early affects your refund

The IRS processes refunds faster when you file early in the season. If you file in late January or early February and choose direct deposit, the IRS typically issues your refund within 21 days. If you file in late March or April, processing still takes about 21 days from the date the IRS receives your return, but the volume of returns being processed is much higher, so delays are more common.

Direct deposit is faster than a paper check. A check can take an additional one to two weeks to arrive by mail after the IRS issues it. If you need your refund quickly, direct deposit to a bank account or prepaid card is the quickest route.

The IRS does not pay interest on refunds that arrive late, and there is no penalty for filing early. Filing as soon as you have your documents and they are organized is purely to your advantage if you expect a refund.

What happens if you file before receiving all your forms

You can file a return before you receive all your income documents, but you should only do this if you are confident the missing forms will not change your tax situation significantly. For example, if you are waiting for a 1099-INT from a bank account with minimal interest, filing without it is usually safe. If you are waiting for a W-2 from a second job or a 1099-NEC from self-employment, filing without it will understate your income and likely result in the IRS sending you a bill later.

If you file and then receive a form that changes your return, you can file an amended return using Form 1040-X. This form corrects your original return and is filed the same way as your original — by mail or through tax software. The IRS processes amended returns more slowly than original returns, often taking several months.

A safer approach is to file only after you have received all the forms you expect. If a form arrives after you file, you can still file an amended return within three years of your original filing date.

Filing early if you owe taxes instead of getting a refund

If you expect to owe taxes, filing early gives you more time to arrange payment. Taxes owed are due on April 15, 2025, regardless of when you file. If you file in January and discover you owe $3,000, you have three months to save or borrow the money. If you wait until April and then file, you have only days to pay.

The IRS offers payment plans for taxes you cannot pay in full. You can set up a short-term plan (up to 180 days) with no setup fee, or a long-term installment agreement with a setup fee that varies depending on how you arrange it. These plans are easier to set up if you file early and contact the IRS with time to spare.

Filing early also means you know your tax liability before April 15, so you can adjust your withholding for the next year. If you owed money because too little was withheld from your paychecks, you can submit a new W-4 to your employer to increase withholding and avoid owing again next year.

Requesting an extension if you cannot file by April 15

If you cannot file by April 15, 2025, you can request an automatic extension by filing Form 4868. This form moves your filing important date to October 15, 2025. You do not need a reason to request an extension — it is automatic if you file the form on time.

An important limitation: an extension to file is not an extension to pay. If you owe taxes, they are still due on April 15, even if you have an extension to file. If you do not pay by April 15, you will owe penalties and interest on the unpaid amount, even if you file before October 15. To avoid this, estimate what you owe and pay it by April 15, then file your actual return later if needed.

You can request an extension by filing Form 4868 electronically through tax software, by mail, or by phone. The form must be filed or postmarked by April 15, 2025.

Frequently Asked Questions

Can I file my 2025 return before January 27, 2025?

No. The IRS does not accept 2025 returns before January 27, 2025. If you attempt to file before that date through tax software or by mail, your return will be rejected. You can prepare your return and gather documents before the season opens, but you cannot submit it to the IRS until January 27 at the earliest.

What if I file early and then discover I made a mistake?

You can file an amended return using Form 1040-X to correct errors. You have three years from your original filing date to file an amended return. The IRS processes amended returns more slowly than original returns, typically taking several months. If the amendment results in a refund, it will be issued after processing is complete.

Do I have to file on January 27, or can I wait until later?

You can file any day between January 27 and April 15, 2025. There is no requirement to file on the first day of the season. Filing early has advantages — faster refunds and more time to address issues — but filing later is not penalized as long as you file by April 15.

What if my employer has not sent my W-2 by February 1?

Contact your employer directly and ask when the W-2 will be mailed. If you do not receive it by February 15, you can report the missing form to the IRS using the tool on its website. You can also file your return without the W-2 if you know your income and withholding amounts, then file an amended return when the W-2 arrives.

If I file an extension, do I still have to pay taxes by April 15?

Yes. An extension moves your filing important date to October 15, but taxes owed are still due on April 15. If you do not pay by April 15, you will owe penalties and interest on the unpaid balance. Estimate what you owe and pay it by April 15, then file your actual return by October 15 if you need the extra time.